lib: fix value refcount of uc_unshift() return value

The ref count of the unshifted value returned by uc_unshift() must be
increased in order to prevent a subsequent double free within the VM
when the value eventually goes out of scope.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/lib.c b/lib.c
index 1c4908f..2d96aa3 100644
--- a/lib.c
+++ b/lib.c
@@ -502,7 +502,7 @@ uc_unshift(uc_vm *vm, size_t nargs)
 		json_object_array_put_idx(arr, arridx, uc_value_get(item));
 	}
 
-	return item;
+	return uc_value_get(item);
 }
 
 static json_object *